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CoPrimes

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Oct 21st, 2016
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  1. let areCoPrimes x y =
  2.   let rec aux (x, y) =
  3.     match x, y with
  4.     | 0, _ | _, 0 -> false
  5.     | Lt          -> aux (x, y - x)
  6.     | Eq          -> x = 1
  7.     | Gt          -> aux (x - y, y)
  8.   aux (abs x, abs y)
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